Cow calving calendar: the most accurate table by day and pregnancy schedule, calculator

The main event for a farmer is the appearance of a calf. To calculate the term of the expected birth, they usually use the cow calving calendar. To do this, you need to know the date of the mating. An error of 10-14 days happens because a pregnant cow carries a calf for 285-300 days. Knowing the approximate date of calving, the owner of the animal will have time to prepare and reduce the risk of problems associated with the birth of the cub.

calving after insemination

Cow goes pregnant no more than 300 days. The estimated date of birth of the cub is calculated by the formula:

((fertilization day) +11) / (month number - 3)=(calving date)

The day of fertilization - the day on which insemination occurred, the day of pregnancy.

Month number - serial number (January is assigned one, February 2, and so on).

Date of calving is the estimated birthday of the calf.

Numerical values remain constant.

Calculation example:

Cow insemination took place on May 4th. Substituting the data into the formula produces the following result:

(4 +11) / (5-3)=15/2

Approximate calving date is February 15th.

If the amount exceeds the number of days in a month, then 30 is subtracted from it.

The cow was inseminated on November 24th.

(24+11) / (11-3)=36 /8=6/8.

Approximate calving date is August 6.

Cow pregnancy and calving calendar

After covering the cow, her pregnancy is determined. There are special tests for this. They often give erroneous results. Therefore, livestock breeders draw up a pregnancy schedule. The date of possible insemination is recorded in it, the date of calving is calculated.

To determine the approximate date of birth of the cub, experienced farmers have created a calendar of pregnancy and calving cows. According to the date of fertilization, the term of the expected birth is calculated. Calculation by the formula in this case is not necessary.

Pregnancy Calculator:

15161 5 10 15 19152015 31 November 7 41717 5 10 15 181521 23 28 JuneMarch SeptemberJuneDecember 1 5 1611 1611 21 202420 262026 202525292531 25July 1 2530

January	October	April	January	July	April	October	July
1	7					7
11	5	9	5	10	5	11
16	10	14	10	15	10	16
21	15				21		25
25	29	25	30	25	31		February
May	February	August	May	November	August		1
1						5	11
8	5	11	5	11		10	16
13	10	16	10	16		15	21
		15	21		20	26	20
20	26	20	26		25	December 1st	25
25	31	25	31		March	December
		September		1	5	1	7
7	1	6		5	9	5	11
11	5	10		10	14	10
	15		15	19	15	21	15
15	20

The odd columns indicate the date of insemination by day and month. In even columns - the date of the expected calving.

Calving Calendar:

Coverage timeDirection timeJanuary 01.01 11.01 22.1015.0725.04 01.11 11.11 FebruaryNovember-December 04.08 14.08 24.08 September June-July02.0311.12 14.06 13.0924.06 22.03 31.1223.0904.07 AprilJanuaryOctoberJuly-August 01.04 10.0103.1014.07 21.0430.0123.1003.08MayFebruary-MarchNovemberAugust-September 01.0509.0202.11 11.05 21.05 31.05 June March-April DecemberSeptember-October10.06 21.0302.1212.0920.06 31.0312.1222.09 10.04

Cover Time	Direction Time
October-November	July	April-May
12.10	05.07	15.04
			21.01
25.07	05.05		31.01
August	May-June
15.05		10.02	21.11
25.04		20.02	01.12
04.06		March	December
			03.09
	12.03	21.12
11.04	20.01	13.10	24.07
		13.08
19.02	12.11	23.08
01.03	22.11	02.09
11.03
			30.06
22.12	02.10

Fetal development

After a successful ogul, pregnancy occurs. During this period, the cow's body goes through the following phases:

1. Germinal phase. The fertilized egg attaches itself to the wall of the uterus.
2. Embryonic phase. A fertilized egg is introduced into the uterine wall, organs and systems are formed in the embryo.
3. Fetal phase. The placenta appears, the body weight becomes larger, the fetus is endowed with functions.

Embryo development occurs gradually over 285 days:

1. In the first month, the organs of vision, the oral cavity are formed. The skin is replaced by a vascular network, gill slits appear. The weight of the embryo is not more than 1 gram.
2. After the second month, important vital organs appear. There is an active growth of the embryo, the placenta is formed. The length of the embryo reaches 8 cm, and the weight increases to 30 grams.
3. From three to six months, the reproductive system, testicles, horns appear. The embryo develops into a calf. The length of the embryo reaches 45 cm, weight approaches 4 kilograms.
4. Starting from the sixth month of pregnancy, hair grows actively, from the seventh month internal organs and incisors appear.

After that, a calf is born.

What could be the complications

The he alth of a pregnant cow is closely monitored. A pregnant animal is vulnerable and susceptible to viral, fungal, bacterial infections.Proper care and nutrition reduce the risk of infection to a minimum. Heifer food is enriched with useful minerals, microelements and iodine. As a preventive measure, the drugs Alfort D3, Sedimin, Chiktonik, Ivermek are used. A consultation with a veterinarian is required. Skin parasites are etched with an antiseptic.

After giving birth, a cow may develop paresis. If a disease is suspected, a veterinarian should be called immediately.

Bacterial infections in livestock are not uncommon. The main signs of the disease:

1. No chewing gum.
2. Diarrhea.
3. Abdominal pain.
4. Prolapse of the rectum.

When a cow has respiratory problems, wheezing, fever, and nasal mucus appear. Especially to be wary of clostridium and brucellosis. These infections are fatal to the animal. Complications of these infections are intoxication of the body, disruption of the nervous system and miscarriage.

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